Merged 6Wind patch.
diff --git a/config.sub b/config.sub
index 004c7de..8c16a0e 100755
--- a/config.sub
+++ b/config.sub
@@ -995,7 +995,8 @@
| -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
| -mingw32* | -linux-gnu* | -uxpv* | -beos* | -mpeix* | -udk* \
| -interix* | -uwin* | -rhapsody* | -darwin* | -opened* \
- | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* | -storm-chaos*)
+ | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
+ | -storm-chaos* | -sixos*)
# Remember, each alternative MUST END IN *, to match a version number.
;;
-qnx*)